ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283

More thorough testing showed that these verbs were necessary to
improve quality of the internal mic. Patch originally from Realtek.

BugLink: https://bugs.launchpad.net/bugs/1231931
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 41f18f4b060b895d16243cce3da7b173160ce3f8..0e303b99a47ceef3037e7b245ed5d93caf1f7779 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3534,6 +3534,7 @@ enum {
        ALC269VB_FIXUP_ORDISSIMO_EVE2,
        ALC283_FIXUP_CHROME_BOOK,
        ALC282_FIXUP_ASUS_TX300,
+       ALC283_FIXUP_INT_MIC,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -3793,6 +3794,16 @@ static const struct hda_fixup alc269_fixups[] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = alc282_fixup_asus_tx300,
        },
+       [ALC283_FIXUP_INT_MIC] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       {0x20, AC_VERB_SET_COEF_INDEX, 0x1a},
+                       {0x20, AC_VERB_SET_PROC_COEF, 0x0011},
+                       { }
+               },
+               .chained = true,
+               .chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+       },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -3877,7 +3888,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-       SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+       SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
        SND_PCI_QUIRK(0x17aa, 0x5026, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),